diff options
Diffstat (limited to 'usr.sbin/xntpd/parse/clk_trimtaip.c')
| -rw-r--r-- | usr.sbin/xntpd/parse/clk_trimtaip.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/usr.sbin/xntpd/parse/clk_trimtaip.c b/usr.sbin/xntpd/parse/clk_trimtaip.c new file mode 100644 index 000000000000..87538f1eb8a1 --- /dev/null +++ b/usr.sbin/xntpd/parse/clk_trimtaip.c @@ -0,0 +1,140 @@ +#if defined(REFCLOCK) && (defined(PARSE) || defined(PARSEPPS)) && defined(CLOCK_TRIMTAIP) +/* + * $Header: /src/NTP/REPOSITORY/v3/parse/clk_trimble.c,v 3.9 1994/02/02 17:45:27 kardel Exp $ + * + * Trimble SV6 clock support + */ + +#include "sys/types.h" +#include "sys/time.h" +#include "sys/errno.h" +#include "ntp_fp.h" +#include "ntp_unixtime.h" +#include "ntp_calendar.h" + +#include "parse.h" + +/* 0000000000111111111122222222223333333 / char + * 0123456789012345678901234567890123456 \ posn + * >RTMhhmmssdddDDMMYYYYoodnnvrrrrr;*xx< Actual + * ----33445566600112222BB7__-_____--99- Parse + * >RTM 1 ;* <", Check + */ + +#define hexval(x) (('0' <= (x) && (x) <= '9') ? (x) - '0' : \ + ('a' <= (x) && (x) <= 'f') ? (x) - 'a' + 10 : \ + ('A' <= (x) && (x) <= 'F') ? (x) - 'A' + 10 : \ + -1) +#define O_USEC O_WDAY +#define O_GPSFIX O_FLAGS +#define O_CHKSUM O_UTCHOFFSET +static struct format trimsv6_fmt = +{ { { 13, 2 }, {15, 2}, { 17, 4}, /* Day, Month, Year */ + { 4, 2 }, { 6, 2}, { 8, 2}, /* Hour, Minute, Second */ + { 10, 3 }, {23, 1}, { 0, 0}, /* uSec, FIXes (WeekDAY, FLAGS, ZONE) */ + { 34, 2 }, { 0, 0}, { 21, 2}, /* cksum, -, utcS (UTC[HMS]OFFSET) */ + }, + ">RTM 1 ;* <", + 0 +}; + +static unsigned LONG cvt_trimtaip(); + +clockformat_t clock_trimtaip = +{ + (unsigned LONG (*)())0, /* no input handling */ + cvt_trimtaip, /* Trimble conversion */ + syn_simple, /* easy time stamps for RS232 (fallback) */ + pps_simple, /* easy PPS monitoring */ + (unsigned LONG (*)())0, /* no time code synthesizer monitoring */ + (void *)&trimsv6_fmt, /* conversion configuration */ + "Trimble SV6/TAIP", + 37, /* string buffer */ + F_START|F_END|SYNC_START|SYNC_ONE, /* paket START/END delimiter, START synchronisation, PPS ONE sampling */ + 0, /* no private data */ + { 0, 0}, + '>', + '<', + '\0' +}; + +static unsigned LONG +cvt_trimtaip(buffer, size, format, clock) + register char *buffer; + register int size; + register struct format *format; + register clocktime_t *clock; +{ + LONG gpsfix; + u_char calc_csum = 0; + long recv_csum; + int i; + + if (!Strok(buffer, format->fixed_string)) return CVT_NONE; +#define OFFS(x) format->field_offsets[(x)].offset +#define STOI(x, y) \ + Stoi(&buffer[OFFS(x)], y, \ + format->field_offsets[(x)].length) + if ( STOI(O_DAY, &clock->day) || + STOI(O_MONTH, &clock->month) || + STOI(O_YEAR, &clock->year) || + STOI(O_HOUR, &clock->hour) || + STOI(O_MIN, &clock->minute) || + STOI(O_SEC, &clock->second) || + STOI(O_USEC, &clock->usecond)|| + STOI(O_GPSFIX, &gpsfix) + ) return CVT_FAIL|CVT_BADFMT; + + clock->usecond *= 1000; + /* Check that the checksum is right */ + for (i=OFFS(O_CHKSUM)-1; i >= 0; i--) calc_csum ^= buffer[i]; + recv_csum = (hexval(buffer[OFFS(O_CHKSUM)]) << 4) | + hexval(buffer[OFFS(O_CHKSUM)+1]); + if (recv_csum < 0) return CVT_FAIL|CVT_BADTIME; + if (((u_char) recv_csum) != calc_csum) return CVT_FAIL|CVT_BADTIME; + + clock->utcoffset = 0; + + /* What should flags be set to ? */ + clock->flags = PARSEB_UTC; + + /* if the current GPS fix is 9 (unknown), reject */ + if (0 > gpsfix || gpsfix > 9) clock->flags |= PARSEB_POWERUP; + + return CVT_OK; +} +#endif /* defined(PARSE) && defined(CLOCK_TRIMTAIP) */ + +/* + * History: + * + * $Log: clk_trimble.c,v $ + * Revision 3.9 1994/02/02 17:45:27 kardel + * rcs ids fixed + * + * Revision 3.7 1994/01/25 19:05:17 kardel + * 94/01/23 reconcilation + * + * Revision 3.6 1993/10/30 09:44:45 kardel + * conditional compilation flag cleanup + * + * Revision 3.5 1993/10/09 15:01:35 kardel + * file structure unified + * + * revision 3.4 + * date: 1993/10/08 14:44:51; author: kardel; + * trimble - initial working version + * + * revision 3.3 + * date: 1993/10/03 19:10:50; author: kardel; + * restructured I/O handling + * + * revision 3.2 + * date: 1993/09/27 21:07:17; author: kardel; + * Trimble alpha integration + * + * revision 3.1 + * date: 1993/09/26 23:40:29; author: kardel; + * new parse driver logic + * + */ |